is an underground railway station on the Minatomirai Line subway in Naka-ku, Yokohama, Kanagawa Prefecture, Japan, operated by the third-sector railway operating company Yokohama Minatomirai Railway Company. It is numbered "MM06", and its official name, as shown on signage in the station, is with the sub-name (Yamashita-kà Âen, referring to Yamashita Park) in parentheses, although the use of this full name is limited.
Motomachi-Chukagai Station is served by the underground Minatomirai Line, and is from the starting point of the line at Yokohama Station. Trains through-run to and from the Tokyu Toyoko Line from Shibuya Station and beyond on the Tokyo Metro Fukutoshin Line and Tobu Tojo Line and Seibu Ikebukuro Line.
Motomachi-Chukagai Station is an underground station with a single island platform serving two terminating tracks on the fourth basement ("B4F") level.
Motomachi-Chukagai Station opened on 1 February 2004, coinciding with the opening of the Minatomirai Line.
In fiscal 2011, the station was used by an average of 54,172 passengers daily.
JR East's Ishikawachà  Station, served by the Negishi Line, was renamed "Ishikawachà  'Motomachi-Chà «kagai' Station" on 15 September 2016 to alleviate confusion on which Negishi Line station is closest to Motomachi and Yokohama Chinatown. Despite this, the two stations are located relatively far from each other, making transfer impractical.